How are SURBLs different from SpamCops Blocking List?
SpamCop’s Blocking List (SCBL) contains IP addresses of senders that have been reported to SpamCop. It does not contain information about web sites or the content of message bodies. The SpamCop BL is often used in mail servers to detect those senders when they try to connect to the server to deliver their messages. While some SURBL lists such as SC and AB use data from SpamCop, it’s the Spamvertised sites that they use and not the sender IP addresses. Those are the web sites advertised in the message bodies which have been reported to SpamCop. The difference is between detecting senders based on message headers, as the SpamCop Block List is commonly used for, versus detecting based on URIs advertised in message bodies, which is what SURBLs are used for. This is useful because senders of unsolicited messages frequently shift the IP addresses they send from, but they tend to advertise the same sites repeatedly. faq.html version 3.
SpamCop’s Blocking List (SCBL) contains IP addresses of senders that have been reported to SpamCop. It does not contain information about web sites or the content of message bodies. The SpamCop BL is often used in mail servers to detect those senders when they try to connect to the server to deliver their messages. While some SURBL lists such as SC and AB use data from SpamCop, it’s the Spamvertised sites that they use and not the sender IP addresses. Those are the web sites advertised in the message bodies which have been reported to SpamCop. The difference is between detecting senders based on message headers, as the SpamCop Block List is commonly used for, versus detecting based on URIs advertised in message bodies, which is what SURBLs are used for. This is useful because senders of unsolicited messages frequently shift the IP addresses they send from, but they tend to advertise the same sites repeatedly.
